Appleman, When you get the new gas line tall them you want an Eythanol resistant line, the Ethanole eats the lines and gaskets.
Qbyfisher, I'm going to guess it was the Eythanol that ate or caused your gas line to rot. If that's the case I'd be willing to bet it's messed up the seals and jets in the carb. You can try using Seafoam to see if it helps but more than likely you'll have to have the carb rebuilt.